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avformat: Add a mechanism to allow demuxers to detect byte based seeking.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-04-04 04:01:12 +02:00
parent 1c0d8f2563
commit e10f5bd05c
2 changed files with 10 additions and 0 deletions
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8
libavformat/avformat.h
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@ -1257,6 +1257,14 @@ typedef struct AVFormatContext {
*/ */
#define RAW_PACKET_BUFFER_SIZE 2500000 #define RAW_PACKET_BUFFER_SIZE 2500000
int raw_packet_buffer_remaining_size; int raw_packet_buffer_remaining_size;
/**
* IO repositioned flag.
* This is set by avformat when the underlaying IO context read pointer
* is repositioned, for example when doing byte based seeking.
* Demuxers can use the flag to detect such changes.
*/
int io_repositioned;
} AVFormatContext; } AVFormatContext;
/** /**

2
libavformat/utils.c
View File

@ -2018,6 +2018,8 @@ static int seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos, in
avio_seek(s->pb, pos, SEEK_SET); avio_seek(s->pb, pos, SEEK_SET);
s->io_repositioned = 1;
return 0; return 0;
} }